A pipe housing system for an engine harness includes a pipe manifold constructed detachable to seal the manifold portion of the engine harness having a manifold outlet for each of the corresponding plurals of harness branches for the engine harness. The pipe housing system also includes a pipe branch for a corresponding harness branch, which is configured to detachably longitudinally seal each corresponding harness branch. The pipe branch is provided with a first branch end and a second branch end, the first branch end is connected with the corresponding manifold outlet, and the second branch end is connected with the exposed part of the corresponding control element of the plurality of control elements in a sealing joint manner and then seals the exposed part.